Home / 194,478.60-291,257.10-131,809.80

Finding the Fourth Proportional to 194,478.60, 291,257.10 and 131,809.80

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Solution

The fourth proportional to 194,478.60, 291,257.10 and 131,809.80 is: 197,402.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    194,478.60 : 291,257.10 = 131,809.80 : x
  2. Step 2: Convert to fraction form
    194,478.60/291,257.10 = 131,809.80/x
  3. Step 3: Cross multiply
    194,478.60x = 291,257.10 × 131,809.80
  4. Step 4: Simplify right side
    194,478.60x = 38,390,540,099.58
  5. Step 5: Solve for x
    x = 38,390,540,099.58/194,478.60
  6. Step 6: Final answer
    x = 197,402.39

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.